公开(公告)号：US20180226599A1

公开(公告)日：2018-08-09

申请号：US15948615

申请日：2018-04-09

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi KIM ,  Jong-Geun YOON ,  Joon-Young HEO ,  Han-Sun PARK ,  Eui-Doo DO ,  Yeon-Kyeong LEE ,  Dae-Hyun KIM ,  Jong-Sik SHIM

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  H01L33/20 ,  H01L33/62 ,  H01L27/15

CPC classification number: H01L51/5012 ,  H01L27/153 ,  H01L27/3211 ,  H01L27/3218 ,  H01L33/20 ,  H01L33/62 ,  H01L51/0002 ,  H01L51/0016 ,  H01L51/0018 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L51/56

Abstract: In an organic light emitting diode (OLED) display device and a method for fabricating the same, OLED pixels are patterned through a photolithography process, so a large area patterning can be performed and a fine pitch can be obtained, and an organic compound layer can be protected by forming a buffer layer of a metal oxide on an upper portion of the organic compound layer or patterning the organic compound layer by using a cathode as a mask, improving device efficiency. In addition, among red, green, and blue pixels, two pixels are patterned through a lift-off process and the other remaining one is deposited to be formed without patterning, the process can be simplified and efficiency can be increased.

公开(公告)号：US20240206293A1

公开(公告)日：2024-06-20

申请号：US18528487

申请日：2023-12-04

Applicant: LG Display Co., Ltd.

Inventor： Joon-Soo HAN ,  Dae-Hyun KIM ,  Jae-Sung HU

IPC: H10K59/80 ,  H10K59/124

CPC classification number: H10K59/879 ,  H10K59/124

Abstract: An organic light-emitting diode display device can include a plurality of sub-pixels disposed over a substrate where each sub-pixel has an emission area and a non-emission area, a thin film transistor in the non-emission area of each sub-pixel, and an overcoat layer over the thin film transistor in each sub-pixel and including a plurality of micro lenses in the emission area of each sub-pixel. The organic light-emitting diode display device can further include a light-emitting diode in the emission area of each sub-pixel over the overcoat layer and connected to the corresponding thin film transistor. For one sub-pixel among the plurality of sub-pixels, the emission area of the one sub-pixel has at least one flat portion disposed at the overcoat layer where a top surface of the overcoat layer is flat, and the overcoat layer has at least one lens pattern in the at least one flat portion.

公开(公告)号：US20240206294A1

公开(公告)日：2024-06-20

申请号：US18533587

申请日：2023-12-08

Applicant: LG Display Co., Ltd.

Inventor： Joon-Soo HAN ,  Dae-Hyun KIM ,  Jae-Sung HU

IPC: H10K59/80 ,  H10K59/121 ,  H10K59/122

CPC classification number: H10K59/879 ,  H10K59/1213 ,  H10K59/122

Abstract: An organic light-emitting diode display device include a substrate including a plurality of sub-pixels, each sub-pixel having an emission area and a non-emission area; a circuit portion in the non-emission area of each sub-pixel, and including a thin film transistor in each sub-pixel; an overcoat layer over the thin film transistors, and including a plurality of micro lenses in the emission area of each sub-pixel; and a light-emitting diode in the emission area of each sub-pixel over the overcoat layer, and connected to the corresponding thin film transistor, wherein for a first sub-pixel among the plurality of sub-pixels, the overcoat layer has at least one lens pattern in the non-emission area.

公开(公告)号：US20240206291A1

公开(公告)日：2024-06-20

申请号：US18200247

申请日：2023-05-22

Applicant: LG Display Co., Ltd.

Inventor： Joon-Soo HAN ,  Dae-Hyun KIM ,  Jae-Sung HU

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/124

CPC classification number: H10K59/879 ,  H10K59/1201 ,  H10K59/124 ,  H10K59/80515

Abstract: An organic light-emitting diode display device can include a substrate including sub-pixels associated with one pixel, each sub-pixel having an emission area and a non-emission area; first conductive lines and a second conductive line over the substrate, wherein the second conductive line crosses over the first conductive lines to define the sub-pixels; a circuit portion in the non-emission area of each sub-pixel, and including a thin film transistor in each sub-pixel; an overcoat layer over the thin film transistors and including micro lenses in the emission area of each sub-pixel; and a light-emitting diode in the emission area of each sub-pixel over the overcoat layer, and connected to the corresponding thin film transistor. For a first sub-pixel among the sub-pixels, the overcoat layer can have a depressed pattern corresponding to the non-emission area of the first sub-pixel and overlapping one of the first conductive lines.

公开(公告)号：US20190198792A1

公开(公告)日：2019-06-27

申请号：US16287312

申请日：2019-02-27

Applicant: LG Display Co., Ltd.

Inventor： Young-Mi KIM ,  Jong-Geun YOON ,  Joon-Young HEO ,  Han-Sun PARK ,  Eui-Doo DO ,  Yeon-Kyeong LEE ,  Dae-Hyun KIM ,  Jong-Sik SHIM

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/00 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L51/5012 ,  H01L27/153 ,  H01L27/3211 ,  H01L27/3218 ,  H01L33/20 ,  H01L33/62 ,  H01L51/0002 ,  H01L51/0016 ,  H01L51/0018 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5234 ,  H01L51/56

Abstract: In an organic light emitting diode (OLED) display device and a method for fabricating the same, OLED pixels are patterned through a photolithography process, so a large area patterning can be performed and a fine pitch can be obtained, and an organic compound layer can be protected by forming a buffer layer of a metal oxide on an upper portion of the organic compound layer or patterning the organic compound layer by using a cathode as a mask, improving device efficiency. In addition, among red, green, and blue pixels, two pixels are patterned through a lift-off process and the other remaining one is deposited to be formed without patterning, to the process can be simplified and efficiency can be increased.

公开(公告)号：US20150187261A1

公开(公告)日：2015-07-02

申请号：US14582192

申请日：2014-12-24

Applicant: LG Display Co., Ltd.

Inventor： Dae-Hyun KIM ,  Woo-Jin NAM

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0219 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2360/16

Abstract: A method of driving an organic light emitting diode display device having first to third sub-pixels and a white sub-pixel comprises judging a gray level of an image data; classifying the image data into a low gray level group, a middle gray level group and a high gray level group; displaying an image using the first to third sub-pixels except the white sub-pixel when the gray level of the image data is classified into the low gray level group; and displaying the image using the first to third sub-pixels and the white sub-pixel when the gray level of the image data is classified into one of the middle and high gray level groups.

Abstract translation: 驱动具有第一至第三子像素和白色子像素的有机发光二极管显示装置的方法包括判断图像数据的灰度级; 将图像数据分为低灰度组，中间灰度组和高灰度组; 当图像数据的灰度级被分类为低灰度组时，使用除了白色子像素之外的第一至第三子像素显示图像; 以及当图像数据的灰度级被分类为中灰度级组和高灰度组之一时，使用第一至第三子像素和白色子像素显示图像。